Cistern-cleaner.



L. F. DAVIS. 015mm CLEANER.

APPLICATION FILED MAY 25, |917.

Patented May 7 1918.

Graff Lnwrs r. Davis, or BowIE, TEXAS.

Hernan-CLEANER.

Specification of Letters Patent.

Patented lvltay 7, 1918.

Application filed May 25, 1917. Serial No. 170,903.

To all whom t may concern.'

Be it known that I, Lnwrs F. DAVIS, a citizen of the United States, residing at Bowie, in the ,county of Montague, State of Texas, have invented certain new and useful improvements in Oistern-Cleaners; and do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which itA appertains to make and use the same.

This invention relates to improvements in cistern cleaners and particularly to suction cleaners.

One objectof the present invention is to provide a device of this character whereby the mud and sediment at the bottom of the cistern may be quickly and easilv removed without stirring up said mud and sediment with the consequent contamination of the water.

Another object is to provide a device of this character which can be easily lowered into the cistern and moved over the bottom thereof to gather the mud and sediment without necessity of the device being sunk into the mud and sediment and causing the same to rise in the water.

Other objects and advantages will be apparent from the following description when taken in connection with the accompanying drawing.

In the drawing:

Figure 1 is a side elevation of my improved cistern cleaner.

Fig. 2 is a vertical longitudinal sectional view taken on the line 2-2 of Fig. l.

Fig. 3 is a horizontal sectional view taken on the line 3 3 of Fig. 1, enlarged.

Fig. i is a horizontal sectional view taken on the line H of Fig. 1.

Referring particularly to the accompanying drawing 10 represents an elongated cylindrical casing having a top member 11 and a bottom member 12. On the top member there are secured a pair of L-shaped brackets 13 and disposed between the upright portions of these brackets, and secured thereto, is the lower end of a rod section 14. Hinged to the upper end of this section is a second section 15, one side of the lower section carrying a hook 16 for engagement with an eye carried by the upper section, for the purpose of holding the hinge joint from moving when the device is lowered into the cistern. Other sections may be similarly connected above the sections shown, according to the depth of the cistern or well to be cleaned. ln the top member, at one side of the center thereof, there is formed an opening 17, and secured within this opening, and extending vertically above the top, is a short tube 18. Within this tube is disposed a stopper 19. Disposed vertically through the stopper is a rod 20, having on its lower end a disk 21 to prevent the stopper being pulled up too far, an on the upper end of the rod is formed an eye to which is connected one end of a cord or wire 22, said eye being shown at 23. This cord or wire extends upwardly to the top of the cistern and is adapted to be pulled to lift the stopper from the tube, for a purpose which will be referred to later. in the bottom of the casing there is formed a central opening 24;, and within the casing, and mounted on the bottom is a iiap valve 25, which is adapted to control the said opening 24.

In the operation of the device, the rod sections are properly locked together, and the casing lowered into the cistern until it rests on the bottom, or slightly thereabove. The stopper is securely tted in the tube before the casing is lowered, and when the casing is at the bottom of the cistern, the cord is pulled to remove the stopper, when the air in the casing will escape through the tube thus creating suction in the casing which will be strong enough to lift the flap valve and permit the mud and sediment to be drawn up into the casing. When the casing is full of mud and sediment, together with some water which necessarily enters the casing, the stopper will automatically seat itself in the tube. The casing is then pulled from the cistern and the contents removed therefrom.

Particular attention is called to the fact that the casing does not have to touch the bottom of the cistern and thus stir up the mud, but is moved about at a slight distance above the bottom, thereby preventing the contamination of the water, the water being immediately usable after the cistern has been cleaned.

What is claimed is:

A cistern cleaner including a casing, a valve in the bottom thereof, a rod connected to the top of the casing for lowering the casing into the cistern, a vertical tube carried by the top of the casing and communieating with the interior thereof, a tightly fitting stopper in the tube, a. Vertical rod exl tending longitudinally through the stopper and secured therewithin, ay HeXible element connected to the upper end of the rod for lifting the stopper from the tube, and a st op disk carried by the lower end of the rod and disposed within the casing and spaced below the upper wall of the easing whereby when the said stopper is entirely removed from the tube said disk will engage said 10 upper wall and prevent the loss ofl the stopper.

In testimony whereof I affix my signature in the presence of two witnesses.

LEWIS F. DAVIS. Witnesses:

F; J. Moss, P. S. STALLINGS.

Copies o1' this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

- Washington, D. C. 

